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Título : Atypical forms of Cryptococcus neoformans in CSF of an AIDS patient
Autor : Bava, Javier 
Solari, Ruben 
Isla, Guillermina 
Troncoso, Alcides 
Palabras clave : Cryptococcus neoformans;Meningitis Criptocócica;Meningoencefalitis;Síndrome de Inmunodeficiencia Adquirida;Microscopía
Fecha de publicación : 2008
Journal: Journal of Infection in Developing Countries 
Resumen : 
The microscopic recognition of typical rounded capsulated yeasts in centrifuged cerebrospinal fluid (CSF), stained with India ink, is a common, rapid and effective method for the diagnosis of cryptococcal meningitis among AIDS patients. The presence of atypical forms of Cryptococcus neoformans var. neoformans in samples of CSF of an AIDS patient with cryptococcosis treated at the University Hospital of Infectious Disease is presented. The India ink microscopy of three consecutive CSF samples revealed capsulated yeast with India ink particles in the deteriorated capsules and capsulated pseudohyophae. Clinically, the patient showed a subacute meningoencephalitis, with a clinical picture not particularly different from those commonly observed in patients with AIDS-associated cryptococcosis treated in our hospital. In all cases, the culture of the CSF showed colonies of C. neoformans with typical macro and micromorphology, and the in vitro susceptibility tests to amphotericin B, fluocitosine, itraconazole and fluconazole showed MIC values into the limits of sensitivity. The presence of atypical forms of C. neoformans, considered as an atypical finding, could be the consequence of an adaptive phenomenon of this fungal species to an impaired immunological status present in the host.
Descripción : 
Fil: Bava, Javier. Universidad de La Plata. Micología; Argentina.

Fil: Solari, Ruben. Hospital de Enfermedades Infecciosas Francisco J. Muñiz; Argentina.

Fil: Isla, Guillermina. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas. Departamento de Micología; Argentina.

Fil: Troncoso, Alcides. Universidad de Buenos Aires. Facultad de Medicina. Cátedra de Microbiología y Parasitología y Enfermedades Infecciosas; Argentina.
URI : http://www.jidc.org/index.php/journal/article/view/19745513/116
http://sgc.anlis.gob.ar/handle/123456789/227
ISSN : 1972-2680
DOI: https://doi.org/10.3855/jidc.207
Derechos: Open Access
Creative Commons Attribution 4.0 International License
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